213130408 has 16 divisors (see below), whose sum is σ = 400575060. Its totient is φ = 106310400.

The previous prime is 213130327. The next prime is 213130409. The reversal of 213130408 is 804031312.

It can be written as a sum of positive squares in 2 ways, for example, as 153809604 + 59320804 = 12402^2 + 7702^2 .

It is not an unprimeable number, because it can be changed into a prime (213130409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28273 + ... + 35008.

Almost surely, 2^213130408 is an apocalyptic number.

It is an amenable number.

213130408 is a deficient number, since it is larger than the sum of its proper divisors (187444652).

213130408 is a wasteful number, since it uses less digits than its factorization.

213130408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63708 (or 63704 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 213130408 is about 14598.9865401678. The cubic root of 213130408 is about 597.3311164064.

The spelling of 213130408 in words is "two hundred thirteen million, one hundred thirty thousand, four hundred eight".